Dividing liner for cartons and method of making same



A ril 11, 1939. R. M. BERGSTEIN 2,154,035

DIVIDING LINER FOR CARTONS AND METHOD OF MAKING SAME Filed March 9, 1938 2 Shegts-Sheet l INVENTOR. BERGSTE/N.

MQLM

ATTORNEYS.

April 1939- R. M. BEIRGSTEIN 2,154,085

DIVIDING LINER FOR CARTONS AND METHOD OF MAKING SAME F'iled March 9, 1958 2 Sheets-Sheet 2 4 if 9 10 19,313 /4 l /5 16 /7 a 5 I i i i I"! s"! M! 4! 120.5. I a i I l I l f l i 1c I d e -;k i I l BY fl q-M ATTORNEYS.

Patented Apr. 11, 1939 UNITED STATES PATENT OFFICE DIVIDING LINER FOR CARTONS AND METHOD OF MAKING SAME Ohio Application March 9,

4 Claims.

My invention relates to dividing liners for cartons suitable for forming a plurality of compartments, each containing a plurality of cells, said liners being made of paperboard or the like, and which can be inserted in anouter sleeve or container, to provide a desired number of individual cells therein.

The partitions now customarily used in the art for providing separate cells in candy boxes, egg boxes, and the like, are made from a number of separate strips of material, slotted so as to interlock one with the other, and this assembling or interlocking of separate strips is an expensive and difficult operation.

Walker in his Patent No. 1,812,126 of January 30, 1931, has disclosed a liner and divider made from a cut and scored blank which may be broken and folded to form a single row of cells. Since containers for candy, eggs and the like usually contain a dozen cells and since the cells are ordinarily arranged in two rows of six or three rows of four, the formation of single cellular rows requires duplication and the consequent use of more paper board than the requirements for cellular compartment formation requires.

It is the object of my invention to provide a dividing liner of the general type suggested by Walker in his Patent No. 1,812,126 but which because of thenovel method of cutting, scoring, folding and assembling the blanks from which my liners are made, results in a liner wherein single rows of compartments, having plural cells in each compartment, are formed so that a single row of compartments with two cells in each compartment will provide a liner in which a container two cells wide and six cells long may be divided into cells with one liner. If the container isto be three cells wide and four long, two liners each consisting of three compartments having two cells each will provide the necessary capacity.

By my invention, as herein disclosed, I provide liners forming rows of compartments having two or more cells in each compartment, said liners being made entirely from a single sheet of stock,

. the use of which requires no interlocking operation, but merely a simple folding manipulation such as can readily be accomplished in a continuously operating folding machine. Further, my dividing liner is economical to manufacture, requires a minimum amount of material, and is exceptionally rigid and secure in use.

These and other features of my invention will be apparent from the drawings forming part of this specification, to which reference is hereby made.

1938, Serial No. 194,893

In the drawings:

Figure 1 is a plan view of the fiat blank for the simplest form of my invention, adapted to form a single row of compartments each containing two cells.

Fig. 2 is a plan view of the blank illustrated in Fig. 1, glued into tubular form, the lengthwise seam having been adhered as indicated. The flat glued partition in this form, is adapted to be shipped to the user.

Fig. 3 is a perspective view of the folding manipulation by which the two cell compartments are formed from the glued tubular condition 11- lustrated in Fig. 2.

Fig. 4 is a plan view of the finished dividing liner, as placed in position in a container after being folded as indicated in Fig. 3.

Fig. 4a is a plan view of the finished dividing liner as placed in position in a container of rhomboid shape.

Fig. 5 is a plan view of the blank for an alternative type of liner providing a triple row of cells.

Fig. 6 is a plan view of the blank of Fig. 5 folded and glued in tubular form.

Fig. 7 is a perspective view of the folded and glued liner of Fig. 6 during the erecting operation.

Fig. 8 is a plan view of the liner shown in Figs. 6 and '7, after inserting in a container.

Fig. 9 is a plan view of a different plan of folding the liner shown in Fig. 6 in a container requiring greater rigidity of the liner.

In following the description, I will refer to the divisions made in the tubular structure by folding along the transverse lines of fold, as compartmen I will refer to the subdivisions of the compartments as cells. Since my dividing liner is a tubular structure, I will refer to the panels forming the outer tubular structure as the walls of said structure. The walls of the cells will be referred to as cellular walls, the walls of the compartment as compartment walls.

Fig. 1 is a plan view of a blank for making a group of four compartment liners, each compartment having two cells. It should be-understood that in the manufacture of these dividing liners that any number of dividing compartments can be made in a continuous manner on an automatic folding machine, so that while a group of four compartments is shown, this is merely for purposes of illustration. The blank in Fig. 1 may be considered as a part only of a continuous web of paper out and scored in accordance with the scoring and cutting pattern of the blank shown in m. 1.

- In order to explain the plan of cuttingthe blank, I will refer to the various cellular compartments illustrated in Pig. 1 as blank A, blank 3, blank C. and blank D. All the blanks have the same longitudinal scoring lines indicated at I, I, 8, I, I, I, and I.

Beginning at the left in accordance with the drawings the first tab a is a glue tab. Articulated to the glue tab is a flap b which forms a divisional wall which subdivides the compartment into two cells. Next I have a flap c which forms part of a side wall of the compartment. The flap d forms an end wall of the compartment. The flap e forms a side wall of the compartment. The flap j forms the end wall of the compartment opposite the end wall d and the flap 0 is united by means of the sealing flap h to form a continuation with the flap 0 of the side wall opposite the side wall a.

Laterally the web of paper material is provided with cut lines which laterally separate all the flaps excepting the side wall flap e which is joined to the flap e1 of the blank 13. The flaps formed by the longitudinal score lines I to I in the blank B correspond to the flaps in the blank A, being indicated at A to H.

The blank C is subdivided into flaps a: to ha. The lateral cutting of the web between the blanks B and C do not correspond with the cutting between the blanks A and B. It will be noted that flaps g1 and a: are only separated by a score line and not by a out line, and that the flaps b1 and b: are also separated only by a score line, and not by a out line.

The blank Dis subdivided into flaps as to ha. The blank D is separated from the blank C by cut lines with the exception of the score line between flaps e: and es. Thus the juncture of the blanks C and D is the same as the juncture be tween the blanks A and B.

The folding of the blank to tubular form is illustrated in Fig. 2, and is accomplished by folding first the flaps a, b and 0 along the line of articulation between the flaps c and d.

Glue is applied to the undersurface of the glue flap 0 which retains the glue flap medially of the glue flap e. Next the flaps f, g and h are folded over along the line of articulation between the flaps e and f. After the blanks A, B, C, D have been folded in tubular form they may be sent the customer in fiat condition.

when the customer wishes to make dividing liners for a carton or other container he erects the blanks to rectangular shape, breaking all the cut lines which it will be understood are not completely cut out but are leftwith little tongues connecting the blanks which are readily torn apart when the blank is ereced into rectangular shape. The only lines of articulation which res'iat tearing apart are the lines between the side walls. Because of the juncture of alternate side walls of the individual compartments, the blanks A, B, C, and D are erected into tubular formation along the lower fold line between the blank A and 13 upon the upper fold line between the blank B and C and along the lower fold line between the blank C and D. Thus a dividing liner is formed which will be received within a fourwalled container such as is indicated at E in Fig. 4.

It will be obvious that .difierent forms may be secured for difierent shaped containers, such as is indicated, for example, in Fig. 4a.

Now referring to Fig. 5 it will be observed that a continuous web may be subdivided to form three cells in each compartment instead of two. I have illustrated in Pig. 5 the blanks F, G, subdivided by lines of articulation I, 0, II, II, i2, i8, H, ll, I, I1; subdividing blanks I" and G into flaps as. 4. c4. d4, e4, f4, 04. b4. 14, 14, In and as, be, on. as, ea, Is, in, he, is, is, and Its. The blanks F and G are folded over along the line of articulation between the flaps c4, 05, and d4, (is, the glue flaps a4, as being turned over and secured in position against the inner surface of the flaps e4, es. Similarly the blanks are folded over along the lines of articulation between the flaps h and ha, and i4 and is, and the glue flaps la and Its are turned over and secured in position against the inner surface of the flaps m, as. Thus we have two tubular formations as illustrated in Fig. 6, separated by the separator formed by the flaps f4, In.

Laterally the blanks I", G, are subdivided by cut lines with readily breakable interlocking tongues and by a line of articulation between the flaps f4, fs.

The blanks shown in Fig. 6 may be erected into rectangular shape and inserted within a rectangular container as illustrated at E in Fig. 8. Thus each compartment has end cells enclosed on four sides and an intermediate cell enclosed only on three sides.

A further method of folding the dividing liner illustrated in Fig.7 is shown in Fig. 9 wherein the container is square. In this case a four cell compartment is formedby folding the cells at the right, as illustrated in Fig. 7, over on the attachment flaps ft, is, so that the walls 7'4 and is are brought into contact with the walls f4. fa, thereby forming a reenforced container having four-ply material for plies of wall material, in the dividing walls between the right hand cells of the compartments formed by the blanks F and G.

It will be obvious that by utilizing the cutting andscoring blank for webs of paper or other flexible material that dividing liners may be formed, which will have compartments subdivided into plural cells which when opened up will provide liners for cartons andcontainers which will subdivide the same into a desired number of compartmentawherein each compartment has a plurality of cells. By using multiples of the blanks as described herein, practically any desired shape of finished container may be subdivided into a desired number of compartments and cells.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A dividing liner comprising a flat folded tubular structure wherein two opposite walls have alternate crease lines at spaced transverse intervals and lines of transverse severance in all remaining walls substantially continuous with each of said crease lines, and wherein a compartment wall extends across the structure subdividing each compartment into at least two cells.

2. A flat folded tubular structure subdivided into compartments and having two lengthwise seams, one retaining the outer tubular form, and

the other retaining an interior panel between two opposite tubular walls, thereby forming cells in each compartment in the structure and opposite walls alternately having lines of fold therein at spaced transverse intervals, and the remaining walls and interior panel having transverse lines of severance extending parallel to said lines of fold.

3. A dividing liner having a series of compartments each joined to an adjacent compartment by a line of fold in a. common wall, and a panel glued in position substantially at a right angle to said common wall subdividing each compartment into two cells.

4. A dividing liner having two compartments joined by a line of fold in a common wall, and two panels glued in position substantially at a right angle to said common wall, subdividing each compartment into three cells.

ROBERT MORRIS BERGST'EIN. 

